Nested XML duplicate field issue

[swardson]

Hey all,

I seem to have run across a potential bug when reading nested XML.

Here is a sample xml structure:

<?xml version="1.0" encoding="utf-8"?>

<data>
    <items>
        <item>
            <subitems>
                <subitem>
                    <title>A Subtitle</title>
                </subitem>
                <subitem>
                    <title>Another Subtitle</title>
                </subitem>
            </subitems>
            <title>Some Title</title>
        </item>
        <item>
            <subitems>
                <subitem>
                    <title>A Subtitle</title>
                </subitem>
                <subitem>
                    <title>Another Subtitle</title>
                </subitem>
            </subitems>
            <title>Some Title</title>
        </item>
    </items>
</data>

Notice how we have title tags nested within subitem and one under each item. However, the title tag that is a direct child of item is listed below the nested sub items.

When I read this structure with associations and want to get the <title> of <item> the data being returned to the field in the model is the first title in the list of subitems rather than the title tag in item.

Here is a sample store:

app.stores.testStore = Ext.regStore('testStore', {
    model: app.models.test,
    
    proxy: {
        type: 'ajax',
        url: 'path/to/test.xml',
        
        reader: {
            type: 'xml',
            root: 'items',
            record: 'item'
        },
    },    
}); 

And here is the models with associations:

app.models.subitem = Ext.regModel('subitem', {
    
    fields: [
        {name: 'title', type: 'string'},
    ],
    
    belongsTo: 'test',
    
    proxy: {
        type: 'memory',
        
        reader: {
            type: 'xml',
            root: 'subitems',
            record: 'subitem'
        },
    },
});

app.models.test = Ext.regModel('test', {
    fields: [
        {name: 'title', type: 'string'}
    ],
    
    hasMany: ['SubItems', {model: 'subitem', name: 'subitems'}],
}); 

When I use the code below to read the data for the first <item> and subseuqently its <title> I am getting a value of "A Subtitle" which is the title of the first subitem rather then the expected "A Title" which is the title of the first item.

var test = app.stores.test;
test.load();

test.on('load', function(){
    console.log(test.getAt(0).data.title);
} 

Am I doing something wrong or is this a bug?

[swardson]

I wanted to mention that I could solve this by placing the <title> tag for item above the <subitems> tag, however, this XML structure in my case is predefined and not something I can edit prior to loading.

Thanks!

[mitchellsimoens]

Looks like first one first served no matter the level.

[swardson]

Yup,

The only workaround I can think of at the moment is to create a proxy to read all of the <title> elements and then test if the parent_id is the correct one before using it. For deeply nested xml this adds quite a bit of unneeded parsing and I haven't implemented it yet, but it's an idea.

Any idea if this has been (or will be) fixed in Sencha v2.0?

Thanks!